1. (

• excavate ,
• dig ,
• hollow ,

) remove the inner part or the core of; "the mining company wants to excavate the hillside" ;

2. (

• hollow ,
• hollow_out ,
• core_out

) remove the interior of; "hollow out a tree trunk" ;

1. (

• hollow

) not solid; having a space or gap or cavity; "a hollow wall"; "a hollow tree"; "hollow cheeks"; "his face became gaunter and more hollow with each year" ;

2. (

• hollow

) as if echoing in a hollow space; "the hollow sound of footsteps in the empty ballroom" ;

3. (

• empty ,
• hollow ,
• vacuous

) devoid of significance or force; "empty promises"; "a hollow victory"; "vacuous comments" ;

4. (

• hollow

) lacking in substance or character; "a hollow person" ;